Brake caliper rebuild HELP!!!!!!!!!!!!
Thread Starter
Melting Slicks
Joined: Jun 2001
Posts: 2,414
Likes: 1
From: Forest Hill Md
Brake caliper rebuild HELP!!!!!!!!!!!!
I'm in the middle of doing a rebuild of my front passenger brake caliper :smash: and I need help.
The 81 Corvette shop manual calls for a bead of "silastic sealant RTV" Gm part # GM1052366 or equivalent, inside the boot groove. The dealership told me it was an old number supersceded(sp?) by # 12378478 which would have to be special ordered :mad It looks to be a black sealant but hard to tell in a black & white manual :crazy: .What can I use as the equivalent?
NOBODY and I mean NOBODY had ever heard of putting RTV inside a brake caliper :eek:
Surely someone here can enlighten me with what I should look for.
Thanks in advance :cheers:
The 81 Corvette shop manual calls for a bead of "silastic sealant RTV" Gm part # GM1052366 or equivalent, inside the boot groove. The dealership told me it was an old number supersceded(sp?) by # 12378478 which would have to be special ordered :mad It looks to be a black sealant but hard to tell in a black & white manual :crazy: .What can I use as the equivalent?
NOBODY and I mean NOBODY had ever heard of putting RTV inside a brake caliper :eek:
Surely someone here can enlighten me with what I should look for.
Thanks in advance :cheers:
Burning Brakes
Joined: Dec 2000
Posts: 1,183
Likes: 2
From: Des Moines Iowa
Re: Brake caliper rebuild HELP!!!!!!!!!!!! (n8370c)
If I remember correctly, I simply used Black Silicone RTV for this purpose. Thought it was just to seal the outside of the 'dust cover', if memory serves me correctly, but it was a couple of years ago, so maybe I'm not remembering correctly. Sorry I can't be of more help.
Melting Slicks
Joined: Oct 2001
Posts: 2,064
Likes: 1,382
From: Halifax, Nova Scotia, Canada
Re: Brake caliper rebuild HELP!!!!!!!!!!!! (n8370c)
John,
Before I installed SS calipers, I rebuild the originals a couple times.
I always used RTV in the boot groove.
The reason is that the piston boot never seals completely on the rough
casting of the caliper.
The RTV "fills in" the imperfections usually from rust scale.
I put some on the piston/boot and also the caliper/boot.
Any high temp. RTV should work well.
Barry
Before I installed SS calipers, I rebuild the originals a couple times.
I always used RTV in the boot groove.
The reason is that the piston boot never seals completely on the rough
casting of the caliper.
The RTV "fills in" the imperfections usually from rust scale.
I put some on the piston/boot and also the caliper/boot.
Any high temp. RTV should work well.
Barry
Thread Starter
Melting Slicks
Joined: Jun 2001
Posts: 2,414
Likes: 1
From: Forest Hill Md
Re: Brake caliper rebuild HELP!!!!!!!!!!!! (n8370c)
As a follow up question,
Did you use the piston ring compressor tool J-22629 or J-22639 to get the seal lip inside the bore hole? can something else be used or can the tool be rented?
Thanks
Did you use the piston ring compressor tool J-22629 or J-22639 to get the seal lip inside the bore hole? can something else be used or can the tool be rented?
Thanks
Melting Slicks
Joined: Jul 1999
Posts: 3,201
Likes: 0
From: Clifton Park NY
Re: Brake caliper rebuild HELP!!!!!!!!!!!! (n8370c)
Did you use the piston ring compressor tool J-22629 or J-22639 to get the seal lip inside the bore hole? can something else be used or can the tool be rented?
For some cool info on brakes (including the use of RTV), check this out:
http://www.idavette.net/hib/BBfHInet12.htm
-Pedro
Thread Starter
Melting Slicks
Joined: Jun 2001
Posts: 2,414
Likes: 1
From: Forest Hill Md
Re: Brake caliper rebuild HELP!!!!!!!!!!!! (n8370c)
Just a quick update,
It's all back together:smash: and so far no leaks :cheers:
A big THANK YOU to those who responded
This place is great .
:cheers: :cheers: :cheers: :cheers:
It's all back together:smash: and so far no leaks :cheers:
A big THANK YOU to those who responded
This place is great .
:cheers: :cheers: :cheers: :cheers:
